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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.cluster.allocation;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.routing.RoutingNode;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.test.ESIntegTestCase;
import static org.elasticsearch.cluster.metadata.IndexMetaData.SETTING_NUMBER_OF_REPLICAS;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.hamcrest.Matchers.equalTo;
public class SimpleAllocationIT extends ESIntegTestCase {
@Override
protected int numberOfShards() {
return 3;
}
@Override
protected int numberOfReplicas() {
return 1;
}
/**
* Test for
* https://groups.google.com/d/msg/elasticsearch/y-SY_HyoB-8/EZdfNt9VO44J
*/
public void testSaneAllocation() {
assertAcked(prepareCreate("test", 3));
ensureGreen();
ClusterState state = client().admin().cluster().prepareState().execute().actionGet().getState();
assertThat(state.getRoutingNodes().unassigned().size(), equalTo(0));
for (RoutingNode node : state.getRoutingNodes()) {
if (!node.isEmpty()) {
assertThat(node.size(), equalTo(2));
}
}
client().admin().indices().prepareUpdateSettings("test").setSettings(Settings.builder().put(SETTING_NUMBER_OF_REPLICAS, 0)).execute().actionGet();
ensureGreen();
state = client().admin().cluster().prepareState().execute().actionGet().getState();
assertThat(state.getRoutingNodes().unassigned().size(), equalTo(0));
for (RoutingNode node : state.getRoutingNodes()) {
if (!node.isEmpty()) {
assertThat(node.size(), equalTo(1));
}
}
// create another index
assertAcked(prepareCreate("test2", 3));
ensureGreen();
client().admin().indices().prepareUpdateSettings("test").setSettings(Settings.builder().put(SETTING_NUMBER_OF_REPLICAS, 1)).execute().actionGet();
ensureGreen();
state = client().admin().cluster().prepareState().execute().actionGet().getState();
assertThat(state.getRoutingNodes().unassigned().size(), equalTo(0));
for (RoutingNode node : state.getRoutingNodes()) {
if (!node.isEmpty()) {
assertThat(node.size(), equalTo(4));
}
}
}
}